CN110875671A - Motor with double cooling channels - Google Patents
Motor with double cooling channels Download PDFInfo
- Publication number
- CN110875671A CN110875671A CN201911229653.6A CN201911229653A CN110875671A CN 110875671 A CN110875671 A CN 110875671A CN 201911229653 A CN201911229653 A CN 201911229653A CN 110875671 A CN110875671 A CN 110875671A
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- liquid
- cooling channel
- rotating shaft
- shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a motor with two cooling channel, includes the casing, establishes stator, rotor and pivot in the casing, be equipped with spiral cooling channel on the casing, the one end of casing is equipped with the water conservancy diversion chamber, the other end of casing is equipped with backward flow chamber, the one end of pivot is located the water conservancy diversion intracavity, the other end of pivot is passed backward flow chamber, the pivot middle part is equipped with axle cooling channel, the inlet is equipped with liquid suction device, perhaps the liquid outlet is equipped with drain, perhaps the inlet is equipped with liquid suction device and the liquid outlet is equipped with drain. Compared with the prior art, the motor with the double cooling channels provided by the invention has the following advantages: the invention has simple structure and convenient assembly, and the cooling medium flows in the shaft cooling channel by arranging the spiral cooling channel, the flow guide cavity and the backflow cavity on the shell and arranging the shaft cooling channel in the rotating shaft and adopting the liquid suction device and the liquid discharge device.
Description
Technical Field
The invention relates to a motor, in particular to a motor with double cooling channels.
Background
The motor can produce a large amount of heat when working, mainly include stator copper loss and iron loss, because of motor internal seal, make the heat can only give off the heat to the external world through the casing, along with the progress of technique, people improve the radiating efficiency through the scheme that sets up concatenation formula pivot and filling medium on the motor shaft, but its pivot adopts the concatenation axle mode, with some axle inside filling cooling medium, with this axle and main shaft part mechanical connection, under this kind of scheme, because of the axle needs to be connected there is the structural strength problem, especially when the high-speed operation of motor, there is great hidden danger.
As disclosed in 2018, 11, 23, the application numbers are: 201810602824.4, a heat dissipation motor, comprising a housing, a stator disposed in the housing, and a rotor disposed in the housing, wherein a base is disposed below the housing; the method is characterized in that: the shell is provided with a heat dissipation mechanism for absorbing heat, and the heat dissipation mechanism comprises a spiral channel arranged in the shell and a refrigerating device arranged at the top of the shell. Although the motor of this kind of structure can play fine radiating effect to motor casing, but the heat of the pivot of motor and stator can not in time lower the temperature, and the inside and outside difference in temperature of motor is great, and the motor is the performance when the rotor temperature is higher and still can receive the influence to there is certain potential safety hazard in the great also of the inside and outside difference in temperature of motor.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a motor with double cooling channels, which can realize synchronous liquid cooling of a shell and a rotating shaft.
The motor with double cooling channels provided by the invention adopts the main technical scheme that: the cooling device comprises a shell, a stator, a rotor and a rotating shaft, wherein the stator, the rotor and the rotating shaft are arranged in the shell, a spiral cooling channel is arranged on the shell, the spiral cooling channel is surrounded on the shell, a cooling medium inlet and a cooling medium outlet are arranged on the spiral cooling channel, a flow guide cavity is arranged at one end of the shell, a backflow cavity is arranged at the other end of the shell, one end of the rotating shaft is positioned in the flow guide cavity, the other end of the rotating shaft penetrates through the backflow cavity, a shaft cooling channel is arranged in the middle of the rotating shaft, a liquid inlet and a liquid outlet which are communicated with the shaft cooling channel are arranged on the rotating shaft, the liquid inlet is positioned in the flow guide cavity, the liquid outlet is positioned in the backflow cavity, and the flow; the liquid inlet is provided with a liquid suction device, or the liquid outlet is provided with a liquid discharge device, or the liquid inlet is provided with a liquid suction device and the liquid outlet is provided with a liquid discharge device.
The motor with double cooling channels provided by the invention also adopts the following auxiliary technical scheme:
the liquid suction device is an axial flow impeller fixed in the shaft cooling channel.
The liquid suction device comprises a cylinder body and an axial flow impeller arranged in the cylinder body, and the cylinder body is arranged at the liquid inlet.
The impeller may also be a plurality of guide vanes.
The liquid drainage device comprises a volute and an impeller fixed in the volute, a volute liquid inlet is formed in one end of the volute, a volute liquid outlet is formed in the side wall of the volute, the volute is located in the liquid outlet, the volute liquid inlet is opposite to the shaft cooling channel, and the volute liquid outlet is opposite to the liquid outlet.
The liquid inlet is arranged at one end of the rotating shaft, and the liquid outlet is arranged on the side wall of the rotating shaft.
The shell comprises a cylindrical middle shell, a front end cover and a rear end cover, wherein the front end cover is arranged at one end of the cylindrical middle shell, and the rear end cover is arranged at the other end of the cylindrical middle shell; the spiral cooling channel is arranged in the cylindrical middle shell, the flow guide cavity is arranged in the rear end cover, and the backflow cavity is arranged in the front end cover.
The cooling medium inlet and the cooling medium outlet are both arranged on the cylindrical middle shell, the cooling medium inlet is close to the diversion cavity, and the cooling medium outlet is close to the reflux cavity.
The cylindrical middle shell comprises an inner shell and an outer shell, the outer shell is sleeved on the inner shell, a spiral groove is formed in the outer wall of the inner shell, and the spiral groove and the inner wall of the outer shell form the spiral cooling channel.
A first shaft hole is formed in the rear end cover and is communicated with the flow guide cavity, one end of the rotating shaft is inserted into the first shaft hole, and a first sealing ring is arranged between the rotating shaft and the first shaft hole; the front end cover is provided with a second shaft hole, the second shaft hole is communicated with the backflow cavity, the other end of the rotating shaft is inserted into the second shaft hole and penetrates through the backflow cavity, and a second sealing ring is arranged between the rotating shaft and the second shaft hole.
Compared with the prior art, the motor with the double cooling channels provided by the invention has the following advantages: the invention has simple structure and convenient assembly, the spiral cooling channel, the flow guide cavity and the backflow cavity are arranged on the shell, the shaft cooling channel is arranged in the rotating shaft, the liquid suction device and the liquid discharge device are adopted to enable the cooling medium to flow in the shaft cooling channel, so that the cooling medium absorbs the heat of the stator, the rotor, the shell and the rotating shaft, the rotor conducts the heat to the shaft cooling channel and the backflow cavity through the rotating shaft, and the stator conducts the heat to the spiral cooling channel through the shell, thereby realizing the synchronous heat dissipation of the stator and the rotor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a liquid suction device in a first embodiment of the invention.
Fig. 3 is a schematic structural diagram of a drainage device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example one
Referring to fig. 1 to 3, an embodiment of a motor with dual cooling channels according to the present invention includes a housing, a stator 2, a rotor 3, and a rotating shaft 4 disposed in the housing, where the housing is provided with a spiral cooling channel 13, the spiral cooling channel 13 surrounds the housing, the spiral cooling channel 13 is provided with a cooling medium inlet 14 and a cooling medium outlet 15, one end of the housing is provided with a flow guide cavity 61, the other end of the housing is provided with a return cavity 51, one end of the rotating shaft 4 is located in the flow guide cavity 61, the other end of the rotating shaft 4 passes through the return cavity 51, the middle of the rotating shaft 4 is provided with a shaft cooling channel 41, the rotating shaft 4 is provided with a liquid inlet 42 and a liquid outlet 43 communicated with the shaft cooling channel 41, the liquid inlet 42 is located in the flow guide cavity 61, and the liquid outlet 43 is located in the return cavity 51, the diversion cavity 61 and the return cavity 51 are both communicated with the spiral cooling channel 13; the liquid inlet 42 is provided with a liquid absorbing device 7, or the liquid outlet 43 is provided with a liquid draining device 8, or the liquid inlet 42 is provided with a liquid absorbing device 7 and the liquid outlet 43 is provided with a liquid draining device 8. The ratio of the sum of the volumes of the diversion cavity 61 and the return cavity 51 to the volume of the spiral cooling channel 13 is 1: 0.5-1: 0.15. the present embodiment is preferably 1: 0.3. this embodiment preferably employs that the liquid inlet 42 is provided with liquid suction means 7 and the liquid outlet 43 is provided with liquid discharge means 8. When the cooling device is used, a corresponding heat dissipation mechanism is selected according to the use environment, the heat dissipation mechanism comprises a cooling pipeline, a cooling water pump arranged in the cooling pipeline, an intercooler arranged on the cooling pipeline and a controller connected with the water pump and the intercooler, the heat dissipation mechanism is a mature technology in the prior art, and detailed description is omitted; in the use process, cooling media are required to be added into the spiral cooling channel 13, the diversion cavity 61, the shaft cooling channel 41 and the reflux cavity 51, and the cooling media can adopt water, anti-freezing cooling liquid and the like; one end of the cooling pipeline is connected with the cooling medium inlet 14, and the other end of the cooling pipeline is connected with the cooling medium outlet 15; the cooling medium circulates in the spiral cooling channel 13, the diversion cavity 61, the backflow cavity 51, the shaft cooling channel 41 and the cooling pipeline, heat is absorbed in the spiral cooling channel 13, the diversion cavity 61, the shaft cooling channel 41 and the backflow cavity 51, the cooling medium dissipates heat when flowing to the intercooler, so that the heat dissipation of the shell, the stator 2, the rotor 3 and the rotating shaft 4 in the motor is realized, in the specific use process, the liquid suction device 7 rotates along with the rotating shaft 4 to enable the shaft cooling channel 41 to generate negative pressure, so that the cooling medium in the diversion cavity 61 is sucked into the shaft cooling channel 41, the liquid discharge device 8 rotates along with the rotating shaft 4 to suck a product to the shaft cooling channel 41, so that the cooling medium in the shaft cooling channel 41 is sucked and exhausted into the backflow cavity 51, the cooling medium in the shaft cooling channel 41 can flow fast, and the cooling of the rotating shaft 4 is realized. When the cooling device is used, the heat dissipation mechanism can be replaced by the fan and the cooling pipeline, one end of the cooling pipeline is connected with an air outlet of the fan, and the other end of the cooling pipeline is connected with the cooling medium inlet 14. The invention has simple structure and convenient assembly, and by arranging the spiral cooling channel 13, the diversion cavity 61 and the return cavity 51 on the shell, and a shaft cooling channel 41 is arranged in the rotating shaft 4, a liquid suction device 7 and a liquid discharge device 8 are adopted to enable a cooling medium to flow in the shaft cooling channel 41, the phenomenon that the cooling medium cannot flow in the shaft cooling channel 41 due to the too thin shaft cooling channel 41 and the flow guiding effect of a heat dissipation mechanism is avoided, the heat of the stator 2, the rotor 3, the machine shell and the rotating shaft 4 is absorbed by the cooling medium, the rotor 3 conducts the heat to the shaft cooling channel 41 and the return cavity 51 through the rotating shaft 4, the stator 2 conducts the heat to the spiral cooling channel 13 through the machine shell, therefore, the synchronous heat dissipation of the stator 2 and the rotor 3 is realized, compared with the prior art, the heat dissipation effect of the invention is greatly improved, the service life of the invention is prolonged, and the reliability of the invention is improved.
Referring to fig. 1 and 2, according to the above-described embodiment of the present invention, the liquid suction device 7 includes a cylinder 71 and an axial-flow impeller 72 provided in the cylinder 71, the cylinder 71 being provided at the liquid inlet 42. This liquid suction device 7 simple structure, convenient assembling, low in production cost, liquid suction device 7 need not external power supply, only needs to rotate along with pivot 4 can produce the effect to the liquid water conservancy diversion. When the rotating shaft 4 rotates, the cylinder 71 rotates along with the rotating shaft 4, so that the axial flow impeller 72 positioned in the cylinder 71 also rotates along with the cylinder 71, negative pressure is generated in the shaft cooling channel 41, and the cooling medium in the flow guide cavity 61 enters the shaft cooling channel 41. The impeller in the present invention may be a plurality of guide vanes.
Referring to fig. 1 and 3, according to the above-mentioned embodiment of the present invention, the liquid drainage device 8 includes a volute 81 and an impeller 82 fixed in the volute 81, one end of the volute 81 is provided with a volute inlet 811, a side wall of the volute 81 is provided with a volute outlet 812, the volute 81 is located in the outlet 43, the volute inlet 811 is opposite to the shaft cooling channel 41, and the volute outlet 812 is opposite to the outlet 43. The liquid drainage device 8 has the advantages of simple structure, convenient assembly and low production cost, and the liquid drainage device 8 does not need an external power supply and can generate the effect of liquid diversion only by rotating along with the rotating shaft 4. When the rotating shaft 4 rotates, the volute 81 rotates along with the rotating shaft 4, so that the impeller 82 positioned in the volute 81 also rotates along with the volute 81, suction is generated on the cooling medium in the shaft cooling channel 41, the cooling medium in the shaft cooling channel 41 is sucked into the volute 81, and the cooling medium in the volute 81 is thrown into the backflow cavity 51 under the action of centrifugal force.
Referring to fig. 1, according to the above-mentioned embodiment of the present invention, the liquid inlet 42 is disposed at one end of the rotating shaft 4, and the liquid outlet 43 is disposed on the side wall of the rotating shaft 4. The installation of the liquid suction device 7 and the liquid discharge device 8 is facilitated, the cooling medium in the diversion cavity 61 can smoothly enter the shaft cooling channel 41 under the condition that the mechanical strength of the rotating shaft 4 is ensured, and the cooling medium in the shaft cooling channel 41 can be smoothly discharged to the backflow cavity 51.
Referring to fig. 1, according to the above-mentioned embodiment of the present invention, the casing includes a cylindrical middle shell 1, a front end cover 5 and a rear end cover 6, the front end cover 5 is disposed at one end of the cylindrical middle shell 1, and the rear end cover 6 is disposed at the other end of the cylindrical middle shell 1; the spiral cooling channel 13 is arranged in the cylindrical middle shell 1, the diversion cavity 61 is arranged in the rear end cover 6, and the reflux cavity 51 is arranged in the front end cover 5. The casing of the invention has simple structure and convenient assembly, and is convenient for the arrangement of the spiral cooling channel 13, the diversion cavity 61 and the reflux cavity 51.
Referring to fig. 1, according to the above-mentioned embodiment of the present invention, the cooling medium inlet 14 and the cooling medium outlet 15 are both disposed on the cylindrical middle shell 1, the cooling medium inlet 14 is close to the diversion cavity 61, and the cooling medium outlet 15 is close to the return cavity 51. Under the action of the external heat dissipation mechanism, the cooling medium can be ensured to stably and evenly enter the diversion cavity 61 and the spiral cooling channel 13 and stably and evenly flow out of the return cavity 51 and the spiral cooling channel 13.
Referring to fig. 1, according to the above-mentioned embodiment of the present invention, the cylindrical middle shell 1 includes an inner shell 11 and an outer shell 12, the outer shell 12 is sleeved on the inner shell 11, a spiral groove is provided on an outer wall of the inner shell 11, and the spiral groove and an inner wall of the outer shell 12 form the spiral cooling channel 13. Similarly, in practice, the spiral groove may be formed on the inner wall of the housing 12. The cylindrical middle shell 1 has the advantages that the structure is simple, the assembly is convenient, the reliability of the spiral cooling channel 13 is high, compared with the spiral tube type spiral cooling channel 13 surrounding the outside of the cylindrical middle shell 1, the spiral cooling channel 13 is not easy to be collided and damaged by the outside, the reliability is higher, the distance from the spiral cooling channel 13 to the stator 2 is shorter, and the cooling effect is better.
Referring to fig. 1, according to the above embodiment of the present invention, a first shaft hole is formed in the rear end cover 6, the first shaft hole is communicated with the diversion cavity 61, one end of the rotating shaft 4 is inserted into the first shaft hole, and a first sealing ring 91 is disposed between the rotating shaft 4 and the first shaft hole; the front end cover 5 is provided with a second shaft hole, the second shaft hole is communicated with the backflow cavity 51, the other end of the rotating shaft 4 is inserted into the second shaft hole and penetrates through the backflow cavity 51, and a second sealing ring 92 is arranged between the rotating shaft 4 and the second shaft hole. The sealing performance between the rotating shaft 4 and the first shaft hole and the second shaft hole is ensured.
Example two
The present embodiment is substantially the same in structure as the above-described embodiments, except for the structure of the liquid suction device, and the liquid suction device 7 is an axial flow impeller 72 fixed in the shaft cooling passage 41. The axial flow impeller 72 is directly fixed in the shaft cooling passage 41, is firmly fixed, and contributes to reducing the length of the rotating shaft 4, thereby improving the mechanical strength of the rotating shaft 4 and improving the stability of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. The utility model provides a motor with two cooling channels, includes the casing, establishes stator, rotor and pivot in the casing, be equipped with spiral cooling channel on the casing, spiral cooling channel encircles on the casing, be equipped with coolant entry and coolant export, its characterized in that on the spiral cooling channel: a flow guide cavity is formed in one end of the shell, a backflow cavity is formed in the other end of the shell, one end of the rotating shaft is located in the flow guide cavity, the other end of the rotating shaft penetrates through the backflow cavity, a shaft cooling channel is formed in the middle of the rotating shaft, a liquid inlet and a liquid outlet which are communicated with the shaft cooling channel are formed in the rotating shaft, the liquid inlet is located in the flow guide cavity, the liquid outlet is located in the backflow cavity, and the flow guide cavity and the backflow cavity are both communicated with the spiral cooling channel; the liquid inlet is provided with a liquid suction device, or the liquid outlet is provided with a liquid discharge device, or the liquid inlet is provided with a liquid suction device and the liquid outlet is provided with a liquid discharge device.
2. The electric machine with dual cooling channels of claim 1, wherein: the liquid suction device is an axial flow impeller fixed in the shaft cooling channel.
3. The electric machine with dual cooling channels of claim 1, wherein: the liquid suction device comprises a cylinder body and an axial flow impeller arranged in the cylinder body, and the cylinder body is arranged at the liquid inlet.
4. The electric machine with dual cooling channels of claim 1, wherein: the liquid drainage device comprises a volute and an impeller fixed in the volute, a volute liquid inlet is formed in one end of the volute, a volute liquid outlet is formed in the side wall of the volute, the volute is located in the liquid outlet, the volute liquid inlet is opposite to the shaft cooling channel, and the volute liquid outlet is opposite to the liquid outlet.
5. The electric machine with dual cooling channels of claim 1, wherein: the liquid inlet is arranged at one end of the rotating shaft, and the liquid outlet is arranged on the side wall of the rotating shaft.
6. The electric machine with dual cooling channels of claim 1, wherein: the shell comprises a cylindrical middle shell, a front end cover and a rear end cover, wherein the front end cover is arranged at one end of the cylindrical middle shell, and the rear end cover is arranged at the other end of the cylindrical middle shell; the spiral cooling channel is arranged in the cylindrical middle shell, the flow guide cavity is arranged in the rear end cover, and the backflow cavity is arranged in the front end cover.
7. The electric machine with dual cooling channels of claim 1, wherein: the cooling medium inlet and the cooling medium outlet are both arranged on the cylindrical middle shell, the cooling medium inlet is close to the diversion cavity, and the cooling medium outlet is close to the reflux cavity.
8. The electric machine with dual cooling channels of claim 1, wherein: the cylindrical middle shell comprises an inner shell and an outer shell, the outer shell is sleeved on the inner shell, a spiral groove is formed in the outer wall of the inner shell, and the spiral groove and the inner wall of the outer shell form the spiral cooling channel.
9. The electric machine with dual cooling channels of claim 1, wherein: a first shaft hole is formed in the rear end cover and is communicated with the flow guide cavity, one end of the rotating shaft is inserted into the first shaft hole, and a first sealing ring is arranged between the rotating shaft and the first shaft hole; the front end cover is provided with a second shaft hole, the second shaft hole is communicated with the backflow cavity, the other end of the rotating shaft is inserted into the second shaft hole and penetrates through the backflow cavity, and a second sealing ring is arranged between the rotating shaft and the second shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229653.6A CN110875671A (en) | 2019-12-04 | 2019-12-04 | Motor with double cooling channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229653.6A CN110875671A (en) | 2019-12-04 | 2019-12-04 | Motor with double cooling channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110875671A true CN110875671A (en) | 2020-03-10 |
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ID=69717449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911229653.6A Pending CN110875671A (en) | 2019-12-04 | 2019-12-04 | Motor with double cooling channels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110875671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972777A (en) * | 2020-07-23 | 2022-01-25 | 通用电气航空系统有限责任公司 | Device and method for cooling an electric machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499697A (en) * | 2009-03-10 | 2009-08-05 | 武汉唯特特种电机有限公司 | Liquid cooling motor |
| CN106300809A (en) * | 2016-09-27 | 2017-01-04 | 佛山市顺德区金泰德胜电机有限公司 | A kind of cooling structure of electric motor of automobile |
| CN106941297A (en) * | 2017-03-22 | 2017-07-11 | 安徽易威斯新能源科技股份有限公司 | A kind of electric automobile automobile drive electric motor |
| CN211046642U (en) * | 2019-12-04 | 2020-07-17 | 北斗航天汽车（北京）有限公司 | Motor with double cooling channels |
-
2019
- 2019-12-04 CN CN201911229653.6A patent/CN110875671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499697A (en) * | 2009-03-10 | 2009-08-05 | 武汉唯特特种电机有限公司 | Liquid cooling motor |
| CN106300809A (en) * | 2016-09-27 | 2017-01-04 | 佛山市顺德区金泰德胜电机有限公司 | A kind of cooling structure of electric motor of automobile |
| CN106941297A (en) * | 2017-03-22 | 2017-07-11 | 安徽易威斯新能源科技股份有限公司 | A kind of electric automobile automobile drive electric motor |
| CN211046642U (en) * | 2019-12-04 | 2020-07-17 | 北斗航天汽车（北京）有限公司 | Motor with double cooling channels |
Non-Patent Citations (1)
| Title |
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| 黄仕年: "《化工机器》", 31 December 1981, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972777A (en) * | 2020-07-23 | 2022-01-25 | 通用电气航空系统有限责任公司 | Device and method for cooling an electric machine |
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Application publication date: 20200310 |
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